Here's a hypothetical of what he could be like at 10th level. This assumes he was level drained at some point as a paladin by an undead creature. That is one of the requirements to join the Hunters of the Dead.
Anyways, pick and choose from anything you like here.
Sir Jonathan Williams; Male Human Paladin5/Hunter of the Dead5; Medium-Sized Humanoid; Init +0; Spd Walk 20'ft.; AC 26 (+11 armor, +4 shield, +1 deflection); Atk +18/+13 melee (1d8+8, Mace of Disruption) or +17/+12 melee (1d8+6, shield bash); SA Aura of Courage, Detect Evil, Detect Undead, Divine Grace, Divine Health, Lay on Hands 25 hp/day, Remove Disease 1/week, Smite Evil 1/day, Smite Undead 1/day, Special Mount, Spurn Death's Touch, True Death, Turn Undead 8/day; AL LG; SV Fort +15, Ref +9, Will +9; Str 20 (22), Dex 10, Con 16, Int 14, Wis 14, Cha 18 (20). Height 6' 4", weight 212 lbs
Skills and Feats: Concentration +16, Diplomacy +18, Handle Animal +10, Heal +12, Knowledge (Undead) +8, Ride +7, Search +15, Divine Shield, Improved Shield Bash, Power Attack, Shield Charge, Shield Expert.
Possessions: Dragonscale +1 of Negative Energy Protection; Traveler's Outfit; Dragonscale Shield +1 of Bashing; Mace +2 of Disruption; Vest of Resistance +2.
Strengths:
AC 30 after divine shield, AC 34 if the recipient of a haste or mass haste spell. With 8 turns per day, divine shield should be easily powered.
Mace of Disruption has a chance of instantly destroying any undead it strikes. 5th level Hunter's of the Dead have an ability called True Death that says any creature they slay remains dead. No staking vampires or exposing them to sunlight, no smashing phylacteries. You kill it, it stays dead.
Saves +19/+9/+9.
Diplomacy +18. When needed, you can be very persuasive.
Extreme attack. You are uniquely set up for making a powerful undead have a very bad day. Say for example you get an open shot at a powerful vampire. With divine shield increasing your shield's bonus to +5 for both offense and defense, and with Shield Charge doubling your shield charge damage you can seriously wreck his day. Add in smite undead and smite evil against the bugger, figure in the +2 to hit for charging the +7 to hit from your smites, and the additional +4 to hit from your divine shield and you can full power attack and still be at near full capacity.
+10 base +6 strength +2 wisdom +5 charisma +5 enhancement (divine shield) +2 charging -10 power attack = +20 to hit.
Damage would be 1d8 +6 strength +5 smite evil +5 smite undead +5 enhancement +10 power attack = 1d8+31 x2 for the shield charge = 2d8+62 for around 70 points of damage to him.
This of course becomes even more deadly when you are hasted because you can use your extra partial action from haste to perform this charge attack, then follow up with a full attack action consisting of two swings of your mace of disruption.
Hunter of the Dead indeed.